Mean χ² for templates listed in 3 at z ~ 3 (blue line with asterisks), z ~ 4 (green line with diamonds), z ~ 5 (yellow line with triangles), and z ~ 6 (red line with squares). The mean χ² for all the galaxies are plotted in black line with circles. In the figure, we use CE1, CE2, and CE3 to represent CE01 templates with 10⁹L_⊙, 10¹¹L_⊙, and 10¹³L_⊙, respectively. We use DH1, DH2, DH3, and DH4 to represent DH02 templates with α = 1.0, 1.5, 2.0, and 2.5, respectively. We use B13a, B13b, B13c, and B13d to represent the SF_glx_1, SF_glx_2, Obs_SF_glx, MIRex_SF_glx templates in the B13 library, respectively.